Required Drupal,Page Speed Optimization,Website Development freelancer for Improve overall score in Gmetrix for Drupal site job

I need to improve a few URLs' speed and errors in Gmetrix for a couple of Drupal websites. What is your knowledge about this subject? Could you improve the overall score in Gmetrix for the Drupal site?

Required Skills:

1. Proficient in Drupal, including custom module development, key contributed modules and core API.
   
2. Minimum 1+ years of Drupal hands-on development experience, specially in Drupal 8, 9.
   
3. Proficient in the maintenance and administration of Drupal modules and sites building.
   
4. Experience integrating open source and third-party applications into existing systems.
   
5. Extensive experience writing custom migrations in Drupal.
   
6. Extremely proficient in OOPS.
   
7. Solid understanding of AJAX, HTML, JavaScript, and CSS.
   

Skills & Expertise Required

Drupal Page Speed Optimization Website Development